Summary of Report: The research detailed in this publication has developed an agenda for reform that is designed to enhance decision-making on infrastructure investments. It is apparent from the collective wisdom of the interviews with leading decision-makers, a survey of infrastructure businesses, the case studies, literature analysis and experience of the study team members that the quality of decision-making practice on infrastructure investments is quite varied. This study has identified remedies in approach and method, in use both here and overseas, which can address these deficiencies, at least in part. Some aspects of the required reforms can be implemented simply through information and training. Others require some investigation and demonstration. None the methods are so technically demanding to be ultimately beyond competent analysts (although some are currently operating at a modest level). All require the adoption of rigorous and more standardised process by decision-makers and analysts alike.